Bar to PSI Conversion Calculator
Convert pressure between bars and pounds per square inch with accurate bidirectional calculations
Pressure Conversion Calculator
1 bar = 100,000 Pa = 14.50377 psi
1 psi = 6,894.757 Pa = 0.0689476 bar
Quick Reference Examples
Bar to PSI:
PSI to Bar:
Pressure Unit Reference
Bar
PSI (Pound per Square Inch)
Common Applications
Tire pressure measurements
Industrial hydraulic systems
Scuba diving equipment
Pneumatic systems
Water pressure systems
Engineering calculations
Bar to PSI Conversion Table
| Bar | PSI | Pascals (Pa) | kPa |
|---|---|---|---|
| 0.1 | 1.450 | 10,000 | 10.0 |
| 0.5 | 7.252 | 50,000 | 50.0 |
| 1 | 14.504 | 1,00,000 | 100.0 |
| 1.5 | 21.756 | 1,50,000 | 150.0 |
| 2 | 29.008 | 2,00,000 | 200.0 |
| 2.5 | 36.259 | 2,50,000 | 250.0 |
| 3 | 43.511 | 3,00,000 | 300.0 |
| 4 | 58.015 | 4,00,000 | 400.0 |
| 5 | 72.519 | 5,00,000 | 500.0 |
| 10 | 145.038 | 10,00,000 | 1000.0 |
| 15 | 217.557 | 15,00,000 | 1500.0 |
| 20 | 290.075 | 20,00,000 | 2000.0 |
| 25 | 362.594 | 25,00,000 | 2500.0 |
| 30 | 435.113 | 30,00,000 | 3000.0 |
| 45 | 652.670 | 45,00,000 | 4500.0 |
| 50 | 725.188 | 50,00,000 | 5000.0 |
Understanding Bar and PSI Pressure Units
What is a Bar?
The bar is a metric unit of pressure equal to 100,000 pascals. Although not part of the SI system, it's widely used in meteorology, engineering, and scuba diving because it represents approximately one atmosphere of pressure at sea level.
Bar Definition
- •1 bar = 100,000 Pa (exactly)
- •1 bar = 100 kPa
- •1 bar = 14.50377 psi
- •Preferred in engineering and meteorology
What is PSI?
PSI (pounds per square inch) is a pressure unit based on the avoirdupois pound-force. It represents the pressure exerted by one pound-force applied to a one square inch area. PSI is commonly used in the United States for tire pressure, hydraulics, and pneumatics.
PSI Definition
- •1 psi = 6,894.757 Pa
- •1 psi = 6.894757 kPa
- •1 psi = 0.0689476 bar
- •Common in US automotive and industrial applications
Conversion Formulas
Bar to PSI
psi = bar × 14.50377
Example: 32.5 bar = 32.5 × 14.50377 = 471.373 psi
PSI to Bar
bar = psi ÷ 14.50377
Example: 232 psi = 232 ÷ 14.50377 = 15.996 bar
Important Note
The exact conversion factor is 14.503773773 psi per bar. The rounded value 14.50377 is used for practical calculations and provides sufficient accuracy for most engineering applications.